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Methicillin resistance and virulence genes in invasive and nasal Staphylococcus epidermidis isolates from neonates

Overview of attention for article published in BMC Microbiology, January 2017
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2 tweeters

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57 Mendeley

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Title
Methicillin resistance and virulence genes in invasive and nasal Staphylococcus epidermidis isolates from neonates
Published in
BMC Microbiology, January 2017
DOI 10.1186/s12866-017-0930-9
Pubmed ID
28086793
Authors

Vivian Carolina Salgueiro, Natalia Lopes Pontes Iorio, Marcelle Cristina Ferreira, Raiane Cardoso Chamon, Kátia Regina Netto dos Santos

Abstract

Staphylococcus epidermidis is an opportunistic pathogen involved in hospital-acquired infections, particularly in those related to medical devices. This study characterized 50 genetically unrelated S. epidermidis isolates from bloodstream infections (BSIs, n = 31) and nares (n = 19) of neonates in relation to staphylococcal chromosomal cassette mec (SCCmec) type, biofilm production and associated genes, and the arginine catabolic mobile elements (ACME), in order to detect virulence factors that could discriminate a potential invasiveness isolate or predict an increasing pathogenicity. Isolates from both groups showed no difference for biofilm production and ACME genes detection. However, BSI isolates harbored more frequently the sdrF and sesI genes (p < 0.05), whereas biofilm producer isolates were associated with presence of the aap gene. The sdrF gene was also significantly more in the biofilm producer isolates from BSI. The SCCmec type IV and the ccr2 complex were related to BSI isolates (p < 0.05), while 83% of the nasal isolates were non-typeable for the SCCmec elements, with the mec complex and ccr undetectable as the most frequent profile. Despite the great clonal diversity displayed by S. epidermidis isolates from neonates, BSI isolates harbored more frequently the sdrF and sesI adhesin genes, while nasal isolates were very variable in SCCmec composition. These aspects could be advantageous to improve colonization in the host increasing its pathogenicity.

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Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 57 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 57 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 11 19%
Student > Bachelor 8 14%
Student > Ph. D. Student 8 14%
Researcher 6 11%
Student > Doctoral Student 4 7%
Other 9 16%
Unknown 11 19%
Readers by discipline Count As %
Agricultural and Biological Sciences 13 23%
Immunology and Microbiology 10 18%
Biochemistry, Genetics and Molecular Biology 10 18%
Medicine and Dentistry 8 14%
Nursing and Health Professions 1 2%
Other 6 11%
Unknown 9 16%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 September 2017.
All research outputs
#8,977,241
of 11,689,928 outputs
Outputs from BMC Microbiology
#1,063
of 1,640 outputs
Outputs of similar age
#176,403
of 263,738 outputs
Outputs of similar age from BMC Microbiology
#16
of 36 outputs
Altmetric has tracked 11,689,928 research outputs across all sources so far. This one is in the 20th percentile – i.e., 20% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,640 research outputs from this source. They receive a mean Attention Score of 3.4. This one is in the 29th percentile – i.e., 29% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 263,738 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 26th percentile – i.e., 26% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 36 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 50% of its contemporaries.

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